Container-stopper.



H. M. ABRAHAMSEN.

CONTAINER STOPPER.

APPLICATION FILED FEB-12,1914.

1,,M4,678 Patented June 29, 1915.

1115 NORRIS PETERS ca, PHOTC-LITHO., WASHINGTON D, c.

' outrun e'rn'rns PATENT canton.

HENRY 1V1. ABRAHAMSEN, OF ELIVIWOOD, MASSACHUSETTS.

CONTAINER-STOPPER.

anors.

Application filed February 12, 1914.

To all whom it may concern Be it known that I, HENRY M. ABRAHAM- SEN, a citizen of the United States, residing at Elmwood, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Container-Stoppers, of which the following is a specification.

This invention relates to container stop pers and more particularly to a stopper or closure for hot water bags or other receptacles.

An object of this invention is the provision of a stopper as specified which embodies mechanism for introducing a quantity of air into the container after the contents have been removed therefrom.

It iswell known, thatwhenwater is removed from a hot water bag or similar container, when the same is stored or hung up, oftentimes the sides stick together, due to a small quantity of liquid retained therein, or to the heat of the atmosphere of the room in which the container is stored; and it is an object'of this invention to overcome this disadvantage by introducing a quantity of air into the container so as to hold the sides apart and prevent them from adhering one to the other.

The invention embodies; a stopper or plug for the mouth of a hot Water bag or like container, which has a valve mechanism associated therewith and communicating with the interior of the container, when the plug is inserted into the mouth of the same, for forcing the necessary amount of air, to prevent the sides from adhering one to the other, into the container prior to the storing of the same.

With the foregoing and other objects in view, this invention consists in such novel features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings and claimed.

In describing the invention in detail reference will be had to the accompanying drawings wherein like characters of reference designate like or corresponding parts throughout the several views, and in which Figure 1 is a sectional view through a container, showing the improved stopper mounted therein, and Fig. 2 is a central sectional view through the improved stopper.

Referring more particularly to the draw- Specification of Letters Patent. Patentqgd June 29; 1915 Serial No. 818,329.

on the shoulder 9, which is formed at the conjunction of the neck 2 and the flared mouth 3.

The stopper 10 is constructed of any suit: able material, preferably thin sheet metal and it has its outer surface provided with corrugations 11 which are disposed in screwthreaded relation with each other, for co action with the corrugations formed within the sleeve 4, for securely holding the stop per 10 within the sleeve and the neck 2 of the container, and also for providing a fluid tight closure for the same. The stopper 10 has its lower end bent inwardly downwardly and rolled upon itself as at 12, so as to securely hold the resilient washer 13, which is preferably constructed of pliat the upper end of the stopper, so as to provide an annular flange 14 upon the upper end of the stopper, the under surface of which engages the upper surface of the annular flange 8 formed upon the sleeve 4.

Handles 15 are secured to the upper end of the stopper 10, by having their shanks 16 inserted through opening in the top of the stopper and up-set as is shown at 17 thereby securely riveting or attaching the handles 15 to the stopper 10. An auxiliary washer 18 is provided which washer is provided with openings for the insertion therethrough of the shank 16 of the handle 15 and this washer abuts the inner surface of the upper end of the stopper 10, forming a reinforcement for the top of the stopper and preventing disruption of the same, by the action of the handles.

A tube 20 which forms a piston valve casing is inserted through the stopper 10 and centrally located therein, being held in place by the frictional engagement bevalve device which constitutes a pair of metallic washers 25 and 26 and a lever or pliable washer 27 mounted thereon. The

' pliable washer 27 is of greater diameter than the interior diameter of the tube 20, so that its sides 28 will be turned downwardly, as is clearly shown in Fig. 2 of the drawings, forming an air-tight joint between the sides of the washer and the interior sides of the tube 20. The washer 27 is of the ordinary cup-leather type such as is used in suction pumps of this nature, so as to provide for the ingress of air into the portion of the tube 20, which is below the valve piston upon upward movement of the piston. An opening 31 is provided in the upper end of the tube 20, so as to equalize the air pressure within the tube, upon the upward movement of the same and also to provide for the ingress of the necessary air into the tube. Should it be desired, the opening in the bearing 22 may be enlarged sufficiently to allow this equalization of the air within the tube, and thus eliminate the necessity of providing the opening 31.

The lower end of the tube 20 is bent inwardly, forming a substantially conically shaped valve seat 32 in which is seated a valve 33. The valve 33 is conically shaped and constructed preferably of pliable rubber so as to form a fluid-tight valve. The valve 33 has a valve rod 34 secured to its upper end and extending upwardly into the tube 20. A spring 35 is mounted about the rod 3a and one end of the spring engages a washer 36, while the other end engages the flared-end 37 of the valve seat 32. Thespring 35 tends to hold the valve 33 securely seated within the valve seat 32 and prevents the ingress of liquid or air into the tube 20 upon the upward motion of the piston valve. During the downward movement of the piston valve, the force ofthe air being compressed within the lower end of the tube, will act upon the spring 35 and overcome the tension of the same, forcing the valve 33 open and permitting the air to pass out through the valve seat 32 and into the container 1.

Copies of this-patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Tn operation; the plug or stopper 10 is inserted into the neck of the container 1, after the water or other liquid contents has been removed therefrom, and a, sufficient amount of air, to prevent the sides of the container from adhering one to the other is forced or pumped into the container by theactuation of the piston valve, and immediately upon the cessation of the actuation of the piston valve, the valve 33 will be firmly seated within the valve seat 32, by the automatic action of the spring and thus the air pumped into the container will be kept therein, and also any fluid which might have been retained within the container will be prevented from entering the tube 20.

From the foregoing description taken in connection with the accompanying drawings the advantages of the construction and of the method of operation of the improved container stopper will be readily apparent to those skilled in the art to which this invention appertains and, while in the foregoing description, the principle of the operation of this invention has been described 1. A container stopper comprising a hollow member having upper and lower ends, openings formed in said ends, handles provided upon the upper end of said stopper, the lower end of said stopper being provided adjacent and surrounding the opening therein with an annular flange, a ring of packing material surrounding said stopper, said flange being rolled upon itself to engage the ring of packing material, and a pump chamber secured in said upper and lower openings, said pump chamber being provided with a piston, and a valve in the lower end ofsaid chamber, said valve seating in an opening in the bottom of said pump chamber.

2. A container stopper comprising a hol low stopper member provided with upper and lower closing ends formed integrally therewith, a cylindrical pump chamber passing through said closing ends and secured therein a piston operatively mounted within the chamber, a packing gasket mounted upon the lower closing end and surrounding the pump chamber and a valve seat in a conical opening formed by depressing inwardly the lower end of said pump chamber, for controlling the ingress or egress of air orliquid.

In testimony whereof I afiX my signature in presence of two witnesses.

HENRY M. ABRAHAMSEN.

Witnesses PRESTON BASTRAM, FREDK. L. ROBINSON.

Washington, D. G. 

